KR20220111724A - 열연 강판 - Google Patents
열연 강판 Download PDFInfo
- Publication number
- KR20220111724A KR20220111724A KR1020227025061A KR20227025061A KR20220111724A KR 20220111724 A KR20220111724 A KR 20220111724A KR 1020227025061 A KR1020227025061 A KR 1020227025061A KR 20227025061 A KR20227025061 A KR 20227025061A KR 20220111724 A KR20220111724 A KR 20220111724A
- Authority
- KR
- South Korea
- Prior art keywords
- less
- hot
- steel sheet
- rolled steel
- content
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 145
- 239000010959 steel Substances 0.000 title claims abstract description 145
- 239000013078 crystal Substances 0.000 claims abstract description 61
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 46
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 31
- 229910052758 niobium Inorganic materials 0.000 claims description 15
- 239000002344 surface layer Substances 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- 229910052720 vanadium Inorganic materials 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 abstract description 27
- 229910001562 pearlite Inorganic materials 0.000 abstract description 23
- 238000001816 cooling Methods 0.000 description 58
- 230000000694 effects Effects 0.000 description 46
- 238000005098 hot rolling Methods 0.000 description 41
- 238000005452 bending Methods 0.000 description 34
- 229910000734 martensite Inorganic materials 0.000 description 31
- 230000009471 action Effects 0.000 description 24
- 238000005096 rolling process Methods 0.000 description 20
- 238000010008 shearing Methods 0.000 description 17
- 229910001563 bainite Inorganic materials 0.000 description 15
- 238000004458 analytical method Methods 0.000 description 14
- 238000010583 slow cooling Methods 0.000 description 14
- 230000009466 transformation Effects 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000007747 plating Methods 0.000 description 13
- 238000005336 cracking Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 229910052761 rare earth metal Inorganic materials 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 10
- 238000005728 strengthening Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000001887 electron backscatter diffraction Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 229910001567 cementite Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 239000012770 industrial material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- 229910007567 Zn-Ni Inorganic materials 0.000 description 1
- 229910007614 Zn—Ni Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003954 pattern orientation Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPJP-P-2020-010944 | 2020-01-27 | ||
| JP2020010944 | 2020-01-27 | ||
| PCT/JP2020/046384 WO2021153037A1 (ja) | 2020-01-27 | 2020-12-11 | 熱延鋼板 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20220111724A true KR20220111724A (ko) | 2022-08-09 |
Family
ID=77078504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020227025061A KR20220111724A (ko) | 2020-01-27 | 2020-12-11 | 열연 강판 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20230055479A1 (ja) |
| EP (1) | EP4098761A1 (ja) |
| JP (1) | JP7260825B2 (ja) |
| KR (1) | KR20220111724A (ja) |
| CN (1) | CN115003835B (ja) |
| MX (1) | MX2022008861A (ja) |
| WO (1) | WO2021153037A1 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7355272B1 (ja) * | 2022-03-10 | 2023-10-03 | Ｊｆｅスチール株式会社 | 鋼板の製造方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10168544A (ja) | 1996-12-10 | 1998-06-23 | Nkk Corp | 打ち抜き性に優れる冷延鋼板及びその製造方法 |
| JPH1161326A (ja) | 1997-08-06 | 1999-03-05 | Nippon Steel Corp | 耐衝突安全性及び成形性に優れた自動車用高強度鋼板とその製造方法 |
| JP2005179703A (ja) | 2003-12-16 | 2005-07-07 | Kobe Steel Ltd | 伸び、及び伸びフランジ性に優れた高強度鋼板 |
| JP2005298924A (ja) | 2004-04-13 | 2005-10-27 | Nippon Steel Corp | 打ち抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4299511B2 (ja) * | 2002-07-23 | 2009-07-22 | 新日本製鐵株式会社 | 打ち抜き性に優れた熱延鋼板 |
| JP4644075B2 (ja) * | 2005-09-02 | 2011-03-02 | 新日本製鐵株式会社 | 穴拡げ性に優れた高強度薄鋼板およびその製造方法 |
| JP5136182B2 (ja) * | 2008-04-22 | 2013-02-06 | 新日鐵住金株式会社 | 切断後の特性劣化の少ない高強度鋼板及びその製造方法 |
| JP6696209B2 (ja) * | 2016-02-18 | 2020-05-20 | 日本製鉄株式会社 | 高強度鋼板の製造方法 |
| BR112019027154A2 (pt) * | 2017-07-07 | 2020-06-30 | Nippon Steel Corporation | chapa de aço laminado a quente e método de fabricação da mesma |
| JP6605085B1 (ja) | 2018-07-20 | 2019-11-13 | 眞弓 仲山 | 折り畳み式トイレ |
| EP3936628A4 (en) * | 2019-03-06 | 2022-10-26 | Nippon Steel Corporation | HOT ROLLED STEEL SHEET |
-
2020
- 2020-12-11 US US17/792,985 patent/US20230055479A1/en active Pending
- 2020-12-11 WO PCT/JP2020/046384 patent/WO2021153037A1/ja unknown
- 2020-12-11 KR KR1020227025061A patent/KR20220111724A/ko not_active Application Discontinuation
- 2020-12-11 MX MX2022008861A patent/MX2022008861A/es unknown
- 2020-12-11 CN CN202080093969.1A patent/CN115003835B/zh active Active
- 2020-12-11 EP EP20916290.8A patent/EP4098761A1/en active Pending
- 2020-12-11 JP JP2021574511A patent/JP7260825B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10168544A (ja) | 1996-12-10 | 1998-06-23 | Nkk Corp | 打ち抜き性に優れる冷延鋼板及びその製造方法 |
| JPH1161326A (ja) | 1997-08-06 | 1999-03-05 | Nippon Steel Corp | 耐衝突安全性及び成形性に優れた自動車用高強度鋼板とその製造方法 |
| JP2005179703A (ja) | 2003-12-16 | 2005-07-07 | Kobe Steel Ltd | 伸び、及び伸びフランジ性に優れた高強度鋼板 |
| JP2005298924A (ja) | 2004-04-13 | 2005-10-27 | Nippon Steel Corp | 打ち抜き加工性に優れた高強度熱延鋼板及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115003835B (zh) | 2024-04-12 |
| EP4098761A4 (en) | 2022-12-07 |
| WO2021153037A1 (ja) | 2021-08-05 |
| US20230055479A1 (en) | 2023-02-23 |
| MX2022008861A (es) | 2022-08-11 |
| JPWO2021153037A1 (ja) | 2021-08-05 |
| JP7260825B2 (ja) | 2023-04-19 |
| EP4098761A1 (en) | 2022-12-07 |
| CN115003835A (zh) | 2022-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal |